Woman grows nose tissue in spine

An unnamed woman had olfactory stem cells from her nose implanted in her spine in an attempt to repair nerve damage. Eight years later, she underwent surgery for increasing pain at the implant site. The cause: a 3-centimeter-long growth formed from nasal tissue, which was secreting mucus, according to a story in New Scientist. Though the tumor was benign, clinics may need to extend their follow-ups with patients to decades after treatment.